Data Announcements

Surface Meteorological Data Overhaul Completed
Aug 28, 2015       
In an effort to provide data product consistency, the task of reprocessing historical surface meteorology data was recently completed. As the ARM Climate Research Facility grew both in size and scope, it became important to create homogenous data sets to ease navigation for users, while providing a straightforward approach for ARM infrastructure staff to maintain [...]

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Doppler Lidar Profile VAPs Now Available
Aug 27, 2015       
The ARM Facility currently operates several scanning coherent Doppler lidar systems at various sites around the globe. These instruments operate in the near infrared and provide measurements of radial velocity, attenuated aerosol backscatter, and signal-to-noise ratio. Previously shared with the ARM user community as an evaluation product, these data are now in production and available [...]

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Large-Scale Forcing Data Collected During DYNAMO/AMIE Now Available for Evaluation
Aug 25, 2015       
Constrained variational analysis of forcing data taken from the northern sounding array are now available for the Dynamics of the Madden-Julian Oscillation (DYNAMO) and the ARM Madden-Julian Oscillation [MJO] Investigation Experiment [AMIE] on Gan Island as an ARM evaluation data product as part of the Single Column Model (SCM)-Forcing Data, Cloud Microphysical Properties and Radiative [...]

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UPDATE: ARM Best Estimate Data Sets From MC3E Now in Production
Aug 21, 2015       
EDITOR'S NOTE: The ARM Best Estimate Data Sets have been moved from evaluation to production at the ARM Data Archive. To view the new data, visit the ARMBE2DGRID and ARMBESTNS VAP pages. Data sets for the ARM Best Estimate 2-Dimensional Grid (ARMBE2DGRID) and Station-based Surface (ARMBESTNS) are now available for the Midlatitude Continental Convective Clouds [...]

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New MICROBASE Ensemble Data Set Available
Apr 28, 2015       
A new data set of ensemble cloud retrievals from the March 2000 intensive observational period at the Southern Great Plains Central Facility is now available in the ARM Data Archive evaluation area. The new data set uses the baseline cloud microphysical algorithm, known as MICROBASE, along with a variance-based method that varies the empirical parameters [...]

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Navigation Best Estimate Value-Added Product Released
Apr 27, 2015       
Developed in response to the first ship-based deployment of the second ARM Mobile Facility (AMF2), the Navigation Best Estimate (NAVBE) Value-Added Product (VAP) has been released for evaluation. Meteorological, cloud, and aerosol measurements were collected during nearly 20 round trips of the container ship, Horizon Spirit, between Los Angeles, CA, and Honolulu, HI, from September [...]

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AmeriFlux and Methane Evaluation VAP Now Available for Barrow Data
Apr 21, 2015       
Greenhouse gases (GHGs) are suspected to be key drivers of global climate change. As Arctic permafrost melts, it unlocks stored carbon, which may contribute to large increases in the atmospheric mixing ratios of these gases. Understanding the rates and controlling mechanisms of these releases is of great importance for climate prediction and modeling. The ARM Climate [...]

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New and Improved Ceilometer Datastream Available
Jan 26, 2015       
Recently, the datastream for the ceilometer instrument for all sites were reprocessed. This end-to-end reprocessing task corrected a couple of problems in the formatting of CEIL data and resulted in a new datastream name. First, the “V” in VCEIL was dropped because it represented the name of the vendor. New data standards for ARM require that [...]

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New MICROARSCL Evaluation Data Released for Barrow, Alaska
Jan 23, 2015       
A new evaluation release of 18 months of data from Barrow, Alaska, provides the first KAZR-based Micro-Active Remote Sensing of Clouds (MICROARSCL) data from this North Slope of Alaska (NSA) site. The addition of the KAZR data to the NSA site adds additional temporal and spatial resolution relative to the retired Millimeter Wavelength Cloud Radar [...]

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An Update of WACR-ARSCL: Evaluation VAP Data Available
Jan 23, 2015       
New data sets from the 95 GHz W-band ARM Cloud Radar-Active Remote Sensing of Clouds (WACR-ARSCL) are now available for download as an evaluation value-added product (VAP) for the ARM Mobile Facility (AMF) deployments in Hyytiälä, Finland, from February through September 2014, and Manacapuru, Brazil, from January through December 2014. Evaluation data have been previously [...]

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Droplet Number Concentration Value-Added Product Now Operational
Oct 20, 2014       
Cloud droplet number concentration is an important factor in understanding aerosol-cloud interactions. As aerosol concentration increases, it is expected that droplet number concentration will increase and droplet size will decrease for a given liquid water path. This will greatly affect cloud albedo as smaller droplets reflect more shortwave radiation; however, the magnitude and variability of [...]

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Large-Scale Forcing Data from the R/V Roger Revelle
Oct 10, 2014       
Constrained variational analysis forcing data centered at the R/V Roger Revelle are now available for the Dynamics of the Madden-Julian Oscillation (DYNAMO) and the ARM Madden-Julian Oscillation [MJO] Investigation Experiment [AMIE] on Gan Island, or AMIE-Gan field campaign. Due to the lack of a sounding array on the Revelle, these forcing data were developed based on [...]

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Large-Scale Forcing Data for AMIE-GAN Updated
Oct 08, 2014       
The ARM Madden-Julian Oscillation [MJO] Investigation Experiment [AMIE] on Gan Island, or AMIE-Gan field campaign collected necessary data for studies of the initiation, propagation, and evolution of MJO and its association with convective clouds. In order to enable single column and/or high-resolution model simulations of the field campaign period, model forcing data sets were developed. Three [...]

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High-Vertical Resolution Soundings Available for SGP and NSA
Sep 29, 2014       
The ARM External Data Center (XDC) now provides atmospheric soundings—vertical measurements of the atmospheric column—in 1-second resolutions collected by the National Weather Service (NWS) in netCDF format to the ARM Data Archive. Quality control is added by the University Corporation for Atmospheric Research. These weather balloon soundings record temperature, pressure, altitude, humidity, and winds for three [...]

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